This is a set of three genuine Martin leather strap ties for attaching a standard guitar strap to the headstock. Please refer to the last photo for how to use them. These are used to attach a standard strap to the headstock side of a guitar that doesn't have a strap pin on the opposite side of the end pin. Regular straps have a thin string for tying, but these allow you to attach the strap in a more stylish and stable way. I used these on three Martin guitars, but recently I've been attaching clip-on tuners and pitch keys to the area where these were attached, and I don't stand and play with a strap very often anymore, so I'm selling them together. I didn't attach the straps themselves very often, but they were left attached to the guitar headstocks, so they show some signs of use. They are made of leather with the Martin & Co. logo in gold foil. There are two black and one brown. *Shipping costs will apply separately, but please feel free to inquire about individual sales. - Brand: Martin & Co. - Material: Leather Thank you for looking.